User guide

15
Chapter 2 - Hardware Installation
2.6 LED Indicators
The mounting brackets for the various ISI cards are similar, but the LEDs are labeled differently. Diagrams for
each bracket along with descriptions of the LED indicators are shown in Figures 2-3 thru 2-7.
ISIHP-4U LEDs (one LED per BRI)
 Flashes between OFF and RED to
indicate that neither SPID for that
ISDN line has been verified.
 Flashes between RED and GREEN
to indicate that one SPID is correct.
 A solid GREEN display indicates
that both SPIDs are correct.
ISIHP-4S/4SD LEDs (one LED per BRI)
 Solid GREEN indicates normal operation.
 Flashes between RED and GREEN
to indicate that the device has been reset.
Line 1
1
3
LINE 1
2
4
Line 2
Line 3
Line 4
Figure 2-3. ISIHP-4U, 4S/4SD LEDs